Factor by any method.81x2 - 4
A. (9x - 2)2
B. (81x + 1)(x - 4)
C. (9x + 2)(9x - 2)
D. (9x + 2)2
Answer: C
Mathematics
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Express the graph shown using interval notation. Also express it as an inequality involving x.
A. [5, 6] 5 ? x ? 6 B. (5, 6] 5 < x ? 6 C. [5, 6) 5 ? x < 6 D. (5, 6) 5 < x < 6
Mathematics
Provide an appropriate response.If 2x2 + 3y2 = 8, use implicit differentiation to find 
and simplify your answer. Note: 
should not appear in your final answer.
What will be an ideal response?
Mathematics
Establish the identity.cos 
= -sin x
What will be an ideal response?
Mathematics
State the conjugate of the given binomial.x + 4
A. 
B. -x - 4
C. -x + 4
D. x - 4
Mathematics